baber/WOPTO huggingface dataset:
Patent KR-20090002594-A (KR)
Title: Method and apparatus for recovering heavy metal from a mining pit in the abandoned mine
Inventor: KIM DONG JIN
IPC: C02F9/08
Filed: 2007-07-02
Abstract: A method and an apparatus for recovering heavy metals from mining pit water in an abandoned mine are provided to recover and remove heavy metals contained in mining pit water and oxidized water more efficiently and completely by using activated carbon, and to prevent water contamination or underground water contamination by adjusting a pH concentration of the mining pit water and oxidized water, thereby purifying the mining pit water and oxidized water. A method for recovering heavy metals from mining pit water in an abandoned mine comprises: a heavy metal removing step(S100) of contacting heavy metal-contained mining pit water or oxidized water with activated carbon, thereby adsorbing the heavy metals contained in the mining pit water or oxidized water onto the activated carbon to remove the heavy metals; a heavy metal precipitating step(S200) of purifying the mining pit water or oxidized water by precipitating a trace amount of heavy metals that has not been adsorbed onto the activated carbon while maintaining a pH of the mining pit water or oxidized water to a range of 6.5 to 7.5 by passing the heavy metal-removed mining pit water or oxidized water through CaO and quartz porphyry powder; and a purification step(S300) of passing the mining pit water or oxidized water from which the trace amount of heavy metals that has been precipitated and removed through a purification tank in which sand, gravel, and activated carbon are sequentially stacked to purify the mining pit water or oxidized water.
Patent KR-20090008026-A (KR)
Title: Blower and air conditioner having the same
Inventor: KIM CHANG HYUN
IPC: F24F1/00
Filed: 2007-07-16
Abstract: Blower and air-conditioner including the same are provided that the structure of the protection against dust member for reducing the vibration noise is made better. Blower and air-conditioner including the same comprise a ventilation fan(120) including compressed coupling, an axis of rotation(130) inserted into the compressed coupling(124a), one or more first dust-proof member(140) which is combined in the axis of rotation and is inserted into the compressed coupling with the axis of rotation. The first dust-proof member has the hook shape. The axis of rotation comprises a settling portion(131) settled in the location in which the first protection against dust member is determined. The settling portion comprises the seating groove (131a) formed according to the peripheral direction of the axis of rotation.
Patent KR-20090010310-A (KR)
Title: Apparatus and method for compensating output signal of magnetic encoder
Inventor: JEON JAE WOOK
IPC: G01D5/244
Filed: 2007-07-23
Abstract: An apparatus and a method for compensating the output signal of a magnetic encoder are provided to compensate output signal including noise through a signal compensation unit applying measured value residual gradient algorithm. An apparatus for compensating the output signal of a magnetic encoder comprises an analog circuit unit(2) controlling the size of a first and a second output signal outputted from the magnetic encoder, an A/D converter(10) converting the first and second output signal into a first and a second digital value, a digital filter unit(20) filtering the first and second digital values and outputting a first and a second measurement value, a signal compensation unit(30) which produces a plurality of offset variables by applying first and second estimation values, optimizes the first and the second measurement value according to the offset variables and outputs the first and second compensation values, and a pulse generating unit(40) producing first and second square wave based on the first and the second compensation value outputted from the signal compensation unit.
Patent KR-20090011079-A (KR)
Title: Apparatus for testing gear transmission error
Inventor: JUNG SANG JIN
IPC: G01M13/02
Filed: 2007-07-25
Abstract: A transmission error testing device is provided to adjust an axial distance between a driving shaft and a driven shaft to test various gears and eliminate necessity of installing a driving motor, an absorption motor and a torque meter. A transmission error testing device includes a driving unit(5) having a driving gear(53) connected to a driving motor and a first encoder(54) measuring the revolving speed and phase of the driving gear, a driven unit(7) having a driven gear(73) rotating by the driving gear and transmitting a driving force to an absorption motor and a second encoder(74) measuring the revolving speed and phase of the driven gear, a data processor(82) processing signals generated from the first and second encoders, and a distance controller(6) controlling the distance between the driving unit and the driven unit.
Patent KR-20090011616-A (KR)
Title: 단문 메시지 발신자 인증 시스템 및 방법
Inventor: KIM MI AE
IPC: H04W4/12
Filed: 2007-07-27
Abstract: 본 발명은 단문 메시지의 발신자를 인증하기 위한 시스템 및 방법에 관한 것이다. 본 발명에 의하면, 단문 메시지 인증 서버에서, 전송 요청되는 단문 메시지의 발신자 전화번호와 회신번호를 비교하여, 발신자 전화번호와 회신번호가 일치하는 경우에만 단문 메시지를 전송하도록 한다. 따라서, 단문 메시지의 발신자를 인증함으로써, 단문 메시지 서비스가 악용되는 것을 사전에 방지할 수 있다. 
     
     SMS, 발신, 인증, 발신번호, 회신번호
Patent KR-20090015249-A (KR)
Title: Differential amplifier, method for amplifying signals, and display driving device having the same
Inventor: AH CHANG HO
IPC: G09G3/36
Filed: 2007-08-08
Abstract: A differential amplifier, a method for amplifying signals, and a display driving device including the same are provided to reduce layout area and power consumption by an output circuit by manufacturing the output circuit along with a transistor instead of an operational amplifier. An input circuit(100) generates first differential currents and second differential currents according to a voltage difference between differential input signals. An output circuit(140) comprises a first transistor and a second transistor. The first transistor is connected between a first voltage rail and an output terminal. The second transistor is connected between the output terminal and a second voltage rail. A current summing circuit(120) includes a first control node and a second control node. The first control node controls a current flowing in the first transistor according to the first differential currents. The second control node controls a current flowing in the second transistor according to the second differential currents. A switching circuit(130) connects a gate of the first transistor to one among the first control node and the first voltage rail according to the control signal, and connects a gate of the second transistor to one among the second control node and the second voltage rail according to the control signal.
Patent KR-20090017833-A (KR)
Inventor: SUNG DO WON
IPC: E05B77/14
Filed: 2007-08-16
Abstract: A door latch assembly having a key reminder function for vehicles is provided to prevent a door from locking in case a driver puts a key on a car through simple mechanical operation by implementing a key reminder function. A latch gear(400) in which a striker of a car body is inserted in door close is pivotally mounted on a door latch panel. A lock lever(300) operates with a safety knob cable for locking / unlocking of a door. A rotating lever(200) is pivotally installed at the door latch panel so that the lock lever rotates to the direction in which door locking is canceled in the rotation of the latch gear according to the opening of the door closed down.
Patent KR-20090019114-A (KR)
Title: Transmission gear shift cable
Inventor: WON DOH YON
IPC: B60K20/00
Filed: 2007-08-20
Abstract: A shift cable is provided to be separated easily without the damage of the part since the ball formed in transmission is surrounded. A shift cable(10) comprises a pipe-like rod(100) connected to the end of the transmission of the wire, an end plate(200) inserted through the pipe type rod inside, a cover(300) placing the pipe type rod in interval and is connected in the end plate, and a socket(400) inserted into the inner circumference of the end plate. The inside diameter of the end plate is formed in order to be inclined. The entrance of socket becomes narrow according to the fastening force of cover.
Patent KR-20090022390-A (KR)
Inventor: LIM SUNG SOO
IPC: B05C7/08
Filed: 2007-08-30
Abstract: 본 발명은 부식된 급수관 내부의 녹을 제거한 후, 에폭시수지를 일정한 두께로 도포할 수 있는 급수관 도장장치에 관한 것으로, 급수관 내부에 삽입되고, 에폭시수지 공급원과 연결되며, 외주부에 전원과 연결되는 전선이 설치되는 에폭시수지 공급관; 상기 에폭시수지 공급관의 단부에 설치되고, 상기 전선과 연결되는 진동자가 내부에 장착되는 다짐볼; 및 상기 다짐볼과 일정간격을 두고 상기 에폭시 수지 공급관에 설치되는 상기 다짐볼보다 직경이 큰 가이드볼을 포함하고, 상기 에폭시수지 공급관은 상기 다짐볼과 상기 가이드볼 사이에서 외주면에 에폭시수지 배출홀이 형성된다. 
       
     급수관 갱생장치, 급수관 도장장치
Patent KR-20090022795-A (KR)
Title: Boneless tteok-galbi and its manufacturing method
Inventor: KIM JANG SU
IPC: A23L13/60
Filed: 2007-08-31
Abstract: A method for preparing a boneless tteok-galbi(smashed meat) is provided to reduce a fatty taste in no need of separating a bone from the tteok-galbi when a user eats the tteok-galbi. A method for preparing a boneless tteok-galbi(smashed meat) comprises the following steps. A stick shaped rice cake is prepared 3-20cm in length(a). A seasoning meat composed of 56-61wt% of meat, 3-4wt% of a tteok-galbi source, 2.7-3.2 wt% of a roast meat source, 1.5-2.5wt% of tteok-galbi seasoning, 1.5-2.0wt% of starch syrup, 1.5-2.0wt% of onion, 1.5-2.0wt% of textured soy protein, 0.5-1.5wt% of refined sugar, 0.5-1.0wt% of a large leek, 0.1-0.2wt% of phosphate, 0.01-0.08wt% of refined salt, and 1.0-1.2wt% of seaweed calcium is prepared(b).
Patent KR-20090029900-A (KR)
Title: Apparatus and method for cycle prefix length detecton in mobile communication system
Inventor: BAE DO HYUN
IPC: H04L27/26
Filed: 2007-09-19
Abstract: An apparatus and method for cycle prefix length detection is provided to reduce the number of a required hardware by integrating a general cycle prefix and an expansion cycle prefix. In an apparatus and method for cycle prefix length detection, a first correlator(5) performs correlation to cycle prefix of a first part in a frame boundary. A second correlator(6) performs correlation to cycle prefix of a second part in a frame boundary. A third correlator(7) performs correlation to cycle prefix of a third part in a frame boundary, and a fourth correlator(8) performs correlation to cycle prefix of a fourth part in a frame boundary. An average(420) averages correlation value of a first or a fourth correlator. If a value by subtracting the correlation value of the fourth correlator from the average is higher than a first critical value, a length detection unit determines that the cycle prefix is an expanded prefix.
Patent KR-20090031642-A (KR)
Title: Polished acf, conductive thin film, particle, sheet and manufacturing
Inventor: LEE HYEONG GON
IPC: H05K3/18
Filed: 2007-09-19
Abstract: A polished anisotropic conductive film and a manufacturing method thereof are provided to manufacture a conductive particle having a desired size and shape by polishing at least one surface of a conductive film. A polished anisotropic conductive film(205) includes a plurality of pits. Depth of the pit is over 10nm. A floor dimension of the pit is less than 1mm2. Thickness of the pit is 10nm ~ 100um. An average pitch between the pits is less than 1mm. A resin layer is adhered or imprinted on at least one surface of the conductive thin film, and includes one or more among micro particles, forming agent, and foams. At least one surface of the conductive thin film is polished. The conductive particles(215) are formed.
Patent KR-20080031109-A (KR)
Title: Apparatus and method for processing signal and program
Inventor: TANAKA MITSUNORI
IPC: G10L19/00
Filed: 2007-09-27
Abstract: A signal processing apparatus, and a signal processing method and program are provided to enable the encoding of a voice stream, of which the signal processing is performed, to be performed by the same type of codec as a codec used in the encoding of a compressed voice stream, thereby preventing a codec used in the encoding of an input stream from being inconsistent with a codec used in the encoding of an output stream when performing the signal processing of the input stream and outputting the processed input stream. A decoder(31) decodes a compressed voice stream encoded in a predetermined codec, and a signal processing unit(32) performs the predetermined signal processing of the voice stream decoded by the decoder. A first acquisition unit(34) acquires at least one of information described to the header of the compressed voice stream and the management information of contents including the compressed voice stream. A setting unit(35) determines a type of the codec used in the encoding of the compressed voice stream on the basis of the information acquired by the first acquisition unit and sets the codec used in the encoding of the voice stream of which the signal processing unit performs the signal processing. An encoder(33) encodes the voice stream, of which the signal processing unit performs the signal processing, according to the setting of the setting unit and outputs the encoded voice stream to an external device with a decoder(21).
Patent KR-20090032212-A (KR)
Title: Nitride semiconductor light emitting device for flip-chip
Inventor: KO KUN YOO
IPC: H01L33/00
Filed: 2007-09-27
Abstract: A nitride semiconductor light emitting device for the flip-chip is provided to improve the heat emitting characteristic by using the high thermal conductivity of the carbon nanotube. An LED chip(100) comprises a substrate(110) which is the optical permeability, a buffer layer, and an n-type nitride semiconductor layer(120). The n-type nitride semiconductor layer is made of semiconductor material having the composition expression of InxAlyGa1-x-yN. The light emitting structure is formed by successively laminating an active layer(130) and a p-type nitride semiconductor layer(140) on the first region of the n-type nitride semiconductor. The active layer is made of the InGaN/GaN layer of the multi-quantum well structure. A p-type electrode(150) is formed in the p-type nitride semiconductor layer. An n-type electrode(160) is formed in the second part of the n-type nitride semiconductor layer. A sub mount(200) is formed by using the silicon wafer with the superior thermal conductivity or the AlN ceramic substrate etc. A bonding layer(300) is made of a carbon nanotube(310).
Patent KR-20090037704-A (KR)
Title: Meta data generation method for intutive image search
Inventor: CHA BYUNG RAE
IPC: G06F17/30
Filed: 2007-10-12
Abstract: A Meta data generation method for intuitive image search is provided to exact and fast search for an image matches a user demand by producing Meta data which supports a user to perform an instinctive image search. An image search server receives image data from an image input device connected through a data network or from an image database server which is storing image, and registers and stores the image data(S100). The image search server extracts descriptive data of the image file from the image data(S110). By using the extracted image file characteristic information, the image search server produces the texture information of file. The image search server analyzes the content of image of inputted image data(S120). By using the analyzed content of image, the image search server produces with Meta data(S130). The image search server stores generated data, and serves the image file and Meta data be indexed and makes the data searchable for users.
Patent KR-20070110224-A (KR)
Title: Terminal unit
Inventor: DEGUCHI YUICHIRO
IPC: G06F3/048
Filed: 2007-10-16
Abstract: A terminal unit is provided to a searching system, a searching apparatus, a searching method, a method of expression for search results, terminal device, input device, and a recording medium that a user searches broadcast contents as not knowing a correct keyword. The present invention is a searching system to search broadcasted contents, and the searching system has an input device, a searching device and a terminal device. The input device comprises the first storage unit to save information of time table for broadcasted contents by corresponding to at least some action, and the first communication unit to deliver to the exterior device the information which indicates time saved in the storage unit. The searching device comprises the second storage unit to correlatively save information which indicates broadcast time and contents, and the searching tool to search information which indicates contents saved in the second storage unit by corresponding to time information. The terminal device comprises: the second communication unit which receives the information of time delivered from the input device through the first communication unit; the third communication unit which delivers time information received by the second communication unit and receives search results delivered from the searching device; and the first display unit to display the time information received by the second communication unit and the search results by the searching device.
Patent KR-20090040109-A (KR)
Title: Regenerative braking device of fuel cell vehicle
Inventor: KIM SUNG JAE
IPC: B60L7/10
Filed: 2007-10-19
Abstract: A regenerative braking device of a fuel cell vehicle is provided to supply a regular barking force by maintaining an irregular braking force regardless of the pressure variation of an air tank. An air compressor(20) operates with the power of a fuel cell stack(10). An air compressor compresses the air. A surge tank(30) stores the compressed air by the air compressor. A 4-way valve(60) distributes the air stored in the surge tank. A front air tank(70) stores the air distributed by the 4-way valve. A brake pedal assembly is connected to a front air tank. A brake pedal assembly is operated with the pneumatic pressure. The controller determines the regenerative braking quantity based on the pressure value of the front air tank and the brake pedal assembly. The controller controls the regenerative braking quantity regardless of the pressure variation of the front air tank.
Patent KR-20090040119-A (KR)
Title: Method for performing ranging procedure
Inventor: LEE HYUN WOO
IPC: H04B7/26
Filed: 2007-10-19
Abstract: A method for performing a ranging process for delivering the status information of a terminal to a base station in a ranging process is provided to manage resource efficiently by efficiently performing a process such as resource allocation. A UE(User Equipment) reads a DL-MAP message transmitted from a BS(Base Station)(S110). A ranging code is transmitted from the terminal in order to attempt the initial ranging(S130). After the ranging response message is received, an RNG-REQ(Ranging Request) message including its own unique identifier is sent to the terminal(S160). The terminal and base station perform the authentication.
Patent KR-20090040983-A (KR)
Title: Display apparatus and method for setting reserved
Inventor: LEE YONG DONG
IPC: H04N5/761
Filed: 2007-10-23
Abstract: A display device and a method for reserve recording a broadcasting program are provided to efficiently reserve a broadcasting program recording by displaying the reserved broadcasting channel before the reserved time. If the current time is earlier than the reserved recording time or earlier than a predetermined time to recording(S20), a control unit operates a PIP(Picture In Picture) function(S30). The control unit displays a menu in a sub-screen of the display screen for displaying a reserved channel and for operating a program reservation(S40). The control unit determines whether a command was inputted on the displayed menu screen from user or not(S50). If a command inputted from user exists, the control unit performs the corresponding operation according to the inputted command(S60). If the command inputted from user does not exist, the control unit determines whether a predetermined time or the reserved time passed or not(S70). If the predetermined time or the reserved time has been passed, the control unit performs the reserved recording at the reserved time or a change a channel to the reserved channel(S80).
Patent KR-20090043215-A (KR)
Inventor: GILL JASON JAE
IPC: F21S13/10
Filed: 2007-10-29
Abstract: 본 발명은 부피를 콤팩트화할 수 있으면서 발광다이오드로부터 발생되는 열기를 외부로 용이하게 배출시킬 수 있도록 함과 아울러, 배광각도를 선택적으로 조절할 수 있도록 그 구조가 개량된 가로등용 조명장치에 관한 것이다. 
     본 발명의 가로등용 조명장치는 가로등 지주의 상부에 결합되는 모듈 케이스와, 모듈 케이스에 회전수단과 틸팅수단을 매개로 회전 및 틸팅 동작 가능하게 설치되고 일측에 하나 또는 복수개의 발광 다이오드가 결합되는 소켓부가 마련되며 타측에 열 방출을 위한 히트 씽크부가 마련되는 램프 모듈을 구비한 것이다. 
     본 발명은 단순 구조로 부피를 콤팩트화할 수 있으면서 램프 모듈의 회전 및 틸팅 동작이 가능하도록 그 구조가 개량된 것인 바, 이에 따르면 본 발명은 발광 다이오드가 설치된 램프 모듈의 배광각도 및 배광 위치를 조정할 수 있으므로, 균일한 조도로 폭넓은 영역에 조명할 수 있는 유용한 효과를 갖는다.
Patent KR-20090044714-A (KR)
Inventor: NAM KYOUNG HEE
IPC: H01L21/316
Filed: 2007-11-01
Abstract: 본 발명은 유도 결합 플라즈마를 화학 기상증착법에 도입하여 별도의 금속 도핑없이 산소유량의 조절만으로 광전소자에 사용되는 p형 산화아연(ZnO) 박막을 제조할 수 있는 p형 산화아연 박막의 제조 시스템 및 그 방법에 관한 것이다. 
     p형 산화아연 박막은 반응 챔버 내에 기판을 로딩하는 단계와; 산소 가스와 DEZ(diethylzinc, Zn(C 2 H 5 ) 2 ) 가스를 각각 독립된 제1 및 제2 가스라인을 통하여 반응 챔버 내부로 공급하는 단계와; 유도결합 플라즈마(ICP) 발생장치를 이용하여 챔버 내부로 분사된 산소 가스 및 DEZ 가스를 플라즈마 상태로 변화시켜서 분해, 활성화시킴에 의해 상기 기판 위에 p형 ZnO 박막을 증착시키는 단계를 거쳐서 얻어진다. 
       
     유도결합 플라즈마, 화학기상 증착, p형 ZnO, 도핑
Patent KR-20090046646-A (KR)
Inventor: MIN BYEONG SU
IPC: F02D41/30
Filed: 2007-11-05
Abstract: ⑤ TIME 수정을 맞춘다 
     ① 연료소량 ② 2초내  RPM속도 ③ 연료량과 매연 ④ 원위치 저 RPM ⑤ 차종에 따라서 고속 speed.up 수정 
     ① 새차공장 출고(후) 동일차종도 매연관계는 다르다 
     ① 1년이상 운행 KM  운행할시 엔진힘과 RPM이 더 올라가면서 최고 속도로 유지하게 된다. 더 과속한다는 것은 연료를 더 먹기때문이다. 
     ② (이유는)(연료PUMP브란쟈)는 과압력으로 밀다보니 ＆ 고열까지 새품질 노즐 전과 다르게 노즐분사 구멍이 더 크게 뚫어져 연료량이 많아져 매연으로 이여진다. 
     ② 엔진이 원활 발휘할 이 시점에서 연료 TIME 수정이 큰 효과가 있다. 
     그러면 새차보다 연료가 더 소량으로 먹는것은 확실한 본인 경험이다. 
     ② 예를들면 Air통로는 변하지 않는데 연료통로는 계속크게 뚫려 연료량이 많아져 엔진발브에 카본이 끼어 불안정 연소와 엔진수명이 짧고 과다 매연으로 이여진다. (또한)냄새가 너무 독해 질식할 정도다 
     ③ 심각한 문제다. 
     
     규격, 치수는 필요없다 오직 각차량 직접 수작업으로 연료 TIME 수정으로만 시행될 뿐이다.
Patent KR-20080042029-A (KR)
Title: Color filter and liquid crystal display using the same
Inventor: NINOMIYA TOSHITAKA
IPC: G02F1/1335
Filed: 2007-11-08
Abstract: A color filter and an LCD(Liquid Crystal Display) using the same are provided to suppress display faults caused by burn in when displaying images as providing high contrast and good colors. A color filter is a colored layer. In an X ray diffraction spectrum for a Cu-K alpha ray, the colored layer indicates one or more diffraction peaks where a half width is more than 0.6 degrees in a Bragg angle of 28±1 degrees. The colored layer includes C.I. pigment red 254. The colored layer includes organic pigment corpuscles generated by mixing a pigment solution where the C.I. pigment red 254 is melt and a solvent, which is compatible with a good solvent and as a poor solvent for the organic pigment, with the good solvent.
Patent KR-20090049176-A (KR)
Inventor: PARK SOON JONG
IPC: H04R9/02
Filed: 2007-11-13
Abstract: 진동신호와 음향신호를 발생하는 다기능 스피커가 개시된다. 상기 다기능 스피커는 진동발생부의 진동방향과 평행한 케이스의 부위가 스프링과 연결되어 진동발생부의 진동력을 최단거리로 전달받는다. 따라서, 진동발생부의 진동 전달 경로가 단축되므로, 진동력이 향상된다. 또한, 스프링의 각 스포크가 한쌍으로 형성되므로 개수가 증가하여 진동력이 더욱 향상된다. 또한, 스포크의 개수가 증가하므로 충격이 분산되어 스포크가 변형에 강하다. 따라서, 제품의 신뢰성이 향상된다. 또한, 스프링의 내측판에 진동발생부가 결합되므로, 그 구조상 내측판의 직경을 작게 형성할 수 있다. 그러면, 스프링의 외주부와 내측판 사이의 반경방향 간격이 넓어지므로, 외주부와 내측판을 연결하는 스포크의 길이를 길게 형성할 수 있다. 스포크의 길이가 길어지면, 진동력이 증가하고 음향신호와 진동신호 발생 영역의 구별이 확실해진다. 또한, 마그네트가 2개 설치되므로, 자기력이 강하다. 따라서, 더욱 큰 진동력을 얻을 수 있을 뿐만 아니라, 큰 음향을 얻을 수 있다.
Patent KR-20090051809-A (KR)
Inventor: KIM IN CHAN
IPC: F16H57/029
Filed: 2007-11-20
Abstract: 본 발명은 디퍼렌셜 사이드기어용 실링캡에 관한 것으로서, 자동변속기의 디퍼렌셜(1)에 드라이브 샤프트(2) 조립시 사이드기어(3) 내부 압력에 의해 변속 오일이 누유되는 현상을 방지하기 위해 상기 디퍼렌셜(1) 일측에 위치하게 되는 디퍼렌셜 사이드기어용 실링캡에 있어서, 상기 드라이브 샤프트(2)가 삽입되는 상기 사이드기어(3) 끝단에 마련되며, 상기 드라이브 샤프트(2)가 위치하게 되는 방향의 측면 중단에는 홈이 형성되고, 상기 홈의 상단 및 하단에는 공기배출홀(110)이 형성된 스틸재질의 커버부(100)와; 상기 커버부(100)의 홈에 삽입되어 상기 홈을 통해 수평방향으로 이동 가능하게 하여 상기 공기배출홀(110)을 개폐시킬 수 있게 하는 캡 형상의 체크밸브(200)와; 일측은 상기 체크밸브(200)에 부착되고, 타측은 상기 커버부(100)에 부착되어, 상기 드라이브 샤프트(2) 조립시 상기 사이드기어(3)의 내부 압력에 의해 상기 체크밸브(200)가 이동하여 상기 공기배출홀(110)을 개폐시키는 것을 탄성 지지하는 리턴스프링(300)으로 구성되어, 드라이브 샤프트 조립시 사이드기어 내부 압력에 의해 발생하는 공기를 외부로 배출시켜 작업성을 향상시킬 수 있도록 하는 것이다. 
       
     디퍼렌셜, 드라이브 샤프트, 사이드기어, 실링캡